LangSmith vs Langfuse vs Braintrust Pricing: 2026 Cost Breakdown
LangSmith vs Langfuse vs Braintrust pricing for 2026: what each vendor meters, every plan and overage rate, and modeled monthly bills at 20k, 100k, and 1M agent runs.
Tag Observability
7 Best Langfuse Alternatives in 2026 for Tracing and Evals
Compare 7 Langfuse alternatives for tracing and evals in 2026: Opik, LangSmith, Braintrust, Phoenix/AX, W&B Weave, Datadog, and Maxim, with pricing, OTel, migration, and who should stay.
Arize Phoenix vs Langfuse vs Helicone: Which to Self-Host in 2026?
Compare Arize Phoenix vs Langfuse vs Helicone for self-host in 2026: ELv2 vs MIT vs Apache-2.0, Docker footprints, OpenInference vs SDK vs proxy, cloud prices, and who should pick which.
8 Best Open Source LLM Observability Tools You Can Self-Host in 2026
Compare 8 open source LLM observability tools you can self-host in 2026, including Langfuse, Opik, Phoenix, Helicone, LangWatch, Agenta, Laminar, and OpenLIT, on license, OTel, Docker, and cost.